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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 05 May, 2005
Analysis Summary
----------------
BGP routing table entries examined: 161179
Prefixes after maximum aggregation: 93748
Unique aggregates announced to Internet: 77720
Total ASes present in the Internet Routing Table: 19570
Origin-only ASes present in the Internet Routing Table: 17023
Origin ASes announcing only one prefix: 7990
Transit ASes present in the Internet Routing Table: 2547
Transit-only ASes present in the Internet Routing Table: 68
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 23
Prefixes from unregistered ASNs in the Routing Table: 14
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1404283968
Equivalent to 83 /8s, 179 /16s and 172 /24s
Percentage of available address space announced: 37.9
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 63.7
Total number of prefixes smaller than registry allocations: 75474
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32940
Total APNIC prefixes after maximum aggregation: 15476
Prefixes being announced from the APNIC address blocks: 30875
Unique aggregates announced from the APNIC address blocks: 15634
APNIC Region origin ASes present in the Internet Routing Table: 2260
APNIC Region origin ASes announcing only one prefix: 660
APNIC Region transit ASes present in the Internet Routing Table: 340
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 182632832
Equivalent to 10 /8s, 226 /16s and 193 /24s
Percentage of available APNIC address space announced: 67.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575
APNIC Address Blocks 58/7, 60/7, 124/7, 126/8, 202/7, 210/7, 218/7,
220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 87459
Total ARIN prefixes after maximum aggregation: 53331
Prefixes being announced from the ARIN address blocks: 68259
Unique aggregates announced from the ARIN address blocks: 25085
ARIN Region origin ASes present in the Internet Routing Table: 9899
ARIN Region origin ASes announcing only one prefix: 3607
ARIN Region transit ASes present in the Internet Routing Table: 941
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 247597056
Equivalent to 14 /8s, 194 /16s and 8 /24s
Percentage of available ARIN address space announced: 70.3
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 30600
Total RIPE prefixes after maximum aggregation: 21160
Prefixes being announced from the RIPE address blocks: 27682
Unique aggregates announced from the RIPE address blocks: 18459
RIPE Region origin ASes present in the Internet Routing Table: 6611
RIPE Region origin ASes announcing only one prefix: 3494
RIPE Region transit ASes present in the Internet Routing Table: 1107
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 203402176
Equivalent to 12 /8s, 31 /16s and 171 /24s
Percentage of available RIPE address space announced: 71.3
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 8608
Total LACNIC prefixes after maximum aggregation: 3021
Prefixes being announced from the LACNIC address blocks: 7029
Unique aggregates announced from the LACNIC address blocks: 4068
LACNIC Region origin ASes present in the Internet Routing Table: 613
LACNIC Region origin ASes announcing only one prefix: 194
LACNIC Region transit ASes present in the Internet Routing Table: 112
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 18532352
Equivalent to 1 /8s, 26 /16s and 200 /24s
Percentage of available LACNIC address space announced: 55.2
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1552
Total AfriNIC prefixes after maximum aggregation: 760
Prefixes being announced from the AfriNIC address blocks: 943
Unique aggregates announced from the AfriNIC address blocks: 748
AfriNIC Region origin ASes present in the Internet Routing Table: 123
AfriNIC Region origin ASes announcing only one prefix: 35
AfriNIC Region transit ASes present in the Internet Routing Table: 14
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 2224640
Equivalent to 0 /8s, 33 /16s and 242 /24s
Percentage of available AfriNIC address space announced: 6.6
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 897 5035 183 CHINANET-BACKBONE
1221 771 1192 548 Telstra Pty Ltd
9583 732 53 75 Sify Limited
4755 587 244 124 Videsh Sanchar Nigam Ltd. Aut
4766 586 3413 277 Korea Telecom (KIX)
7545 495 86 72 TPG Internet Pty Ltd
17676 431 6509 73 Softbank BB Corp.
9443 370 77 76 Primus Telecommunications
9929 359 197 46 China Netcom Corp.
2907 345 1838 319 SINET Japan
17557 332 23 153 Pakistan Telecom
10036 313 28 284 C&M Communication Co. Ltd.
4808 309 251 169 CNCGROUP IP network: China169
7474 299 268 208 SingTel Optus Pty Ltd
9498 294 83 59 BHARTI BT INTERNET LTD.
4802 279 47 164 Wantree Development
2764 258 238 197 AAPT Limited
703 257 279 212 UUNET - Commercial IP service
17974 245 65 14 PT TELEKOMUNIKASI INDONESIA
9800 242 386 69 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1488 6500 954 AT&T WorldNet Services
174 1188 5612 1017 Cogent Communications
721 1116 21763 311 DLA Systems Automation Center
4323 1112 665 225 Time Warner Telecom
701 1009 8250 859 UUNET Technologies, Inc.
1239 905 2869 655 Sprint
6197 903 370 454 BellSouth Network Solutions,
2386 849 532 630 AT&T Data Communications Serv
18566 801 224 7 Covad Communications
209 654 3456 495 Qwest
20115 596 505 308 Charter Communications
3356 586 10837 441 Level 3 Communications, LLC
3561 543 2360 416 Savvis
27364 539 43 18 Armstrong Cable Services
852 531 1095 392 Telus Advanced Communications
3602 506 122 94 Sprint Canada, Inc.
5668 487 115 25 CenturyTel Internet Holdings,
22773 483 1188 21 Cox Communications, Inc.
6198 473 543 203 BellSouth Network Solutions,
7132 443 8782 380 SBC Internet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 594 2003 486 UUNET - Commercial IP service
3320 303 3249 237 Deutsche Telekom AG
3301 297 1117 287 TeliaNet Sweden
8220 274 469 268 COLT Telecommunications
680 253 2041 238 DFN-IP service G-WiN
3246 232 491 227 Song Networks
8708 228 251 209 Romania Data Systems S.A.
1257 200 728 176 SWIPnet Swedish IP Network
5515 178 778 128 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3269 167 1472 73 TELECOM ITALIA
6746 164 47 143 Dynamic Network Technologies,
8866 162 21 12 Bulgarian Telecommunication C
719 159 340 101 LANLINK autonomous system
3300 151 184 84 AUCS Communications Services
5400 143 284 127 BT Ignite European Backbone
25186 139 137 97 France Telecom Transpac's Tra
6830 137 513 27 UPC Distribution Services
2856 129 2305 116 BTnet UK Regional network
9051 128 8 34 INCONET Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 374 598 148 UniNet S.A. de C.V.
16814 266 16 7 NSS, S.A.
11172 224 99 54 Servicios Alestra S.A de C.V
6147 197 102 20 Telefonica Del Peru
11664 155 19 22 Keytech SA
7303 148 68 21 Telecom Argentina Stet-France
14117 135 8 4 Telefonica del Sur S.A.
22047 132 96 6 VTR PUNTO NET S.A.
6505 130 90 87 Global One Communicaoes Ltda
13999 112 52 9 Mega Cable S.A. de C.V.
11556 111 55 7 Cable-Wireless Panama
18822 105 7 15 TELEFONICA MANQUEHUE
6503 102 146 73 AVANTEL, S.A.
10481 101 40 7 Prima S.A.
19169 99 6 16 Telconet
19632 93 14 5 Metropolis Intercom S.A.
21826 90 12 18 INTERCABLE
23216 87 24 23 RAMtelecom Telecomunicaciones
5639 86 12 9 Telecommunications Services o
11311 85 8 21 Sinectis S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 270 637 225 The Internet Solution
5536 119 15 17 Internet Egypt Network
2018 91 295 87 Tertiary Education Network
20928 90 16 2 Noor Advanced Technologies AS
2905 75 267 69 The Internetworking Company o
8452 64 20 5 TEDATA
24835 60 34 6 RAYA Telecom - Egypt
9129 45 3 3 UUNET Kenya
12455 41 6 3 Jambonet Autonomous system
5713 35 141 28 Telkom SA Ltd
6713 35 54 9 Itissalat Al-MAGHRIB
8524 25 1 4 AUCEGYPT Autonomous System
15475 24 84 4 Nile Online
16637 22 10 19 Johnnic e-Ventures
10798 19 1 11 Standard Bank of South Africa
33765 19 3 8 TANZANIA TELECOMMUNICATIONS C
7460 18 3 5 LIA Internet Access
2609 17 26 3 Tunisia BackBone AS
12258 17 3 11 Vodacom Internet Company
21280 17 2 3 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
0 0 65530 *
4323 1112 887 Time Warner Telecom
721 1116 805 DLA Systems Automation Center
18566 801 794 Covad Communications
4134 897 714 CHINANET-BACKBONE
9583 732 657 Sify Limited
27364 539 521 Armstrong Cable Services
4755 587 463 Videsh Sanchar Nigam Ltd. Aut
5668 487 462 CenturyTel Internet Holdings,
22773 483 462 Cox Communications, Inc.
6197 903 449 BellSouth Network Solutions,
7545 495 423 TPG Internet Pty Ltd
3602 506 412 Sprint Canada, Inc.
6467 428 393 E.Spire Communications, Inc.
17676 431 358 Softbank BB Corp.
6140 398 326 ImpSat
7725 331 316 MediaOne
9929 359 313 China Netcom Corp.
4766 586 309 Korea Telecom (KIX)
9443 370 294 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65424 PRIVATE 66.225.194.0/24 23352 Server Central Netwo
65424 PRIVATE 66.225.194.0/23 23352 Server Central Netwo
65424 PRIVATE 66.225.195.0/24 23352 Server Central Netwo
65004 PRIVATE 200.0.113.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.0.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.1.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.2.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.3.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.4.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.5.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.6.0/24 28477 Universidad Autonoma
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
65444 PRIVATE 212.25.125.0/24 8551 Bezeq International
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
172.32.0.0/24 7011 Citizens Utilities
172.122.28.0/24 210 Utah Education Network
192.43.230.0/24 7575 Australian Academic and Rease
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.172.0.0/19 721 DLA Systems Automation Center
192.200.100.0/24 7018 AT&T WorldNet Services
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:8 /11:15 /12:69
/13:154 /14:308 /15:584 /16:8374 /17:2536 /18:4369
/19:10255 /20:11086 /21:8956 /22:12371 /23:13328 /24:87859
/25:276 /26:259 /27:138 /28:76 /29:37 /30:70
/31:0 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 785 801 Covad Communications
6197 742 903 BellSouth Network Solutions,
7018 675 1488 AT&T WorldNet Services
2386 602 849 AT&T Data Communications Serv
9583 548 732 Sify Limited
27364 528 539 Armstrong Cable Services
4323 521 1112 Time Warner Telecom
5668 404 487 CenturyTel Internet Holdings,
4766 403 586 Korea Telecom (KIX)
1239 379 905 Sprint
702 366 594 UUNET - Commercial IP service
6198 342 473 BellSouth Network Solutions,
10036 313 313 C&M Communication Co. Ltd.
6467 308 428 E.Spire Communications, Inc.
7725 304 331 MediaOne
7011 297 347 Citizens Utilities
6517 294 317 Yipes Communications, Inc.
9929 280 359 China Netcom Corp.
11456 276 318 Carolina Online, Inc.
15270 259 279 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:12 12:1532 13:1 15:9 16:2
17:3 18:4 20:4 24:1014 30:2 32:69
33:4 38:113 40:53 44:3 47:2 52:4
55:2 56:3 57:23 58:42 59:28 60:22
61:791 62:598 63:1875 64:2701 65:2062 66:2803
67:567 68:523 69:997 70:97 71:6 72:171
80:558 81:546 82:390 83:251 84:166 85:191
86:7 128:144 129:158 130:85 131:279 132:34
133:1 134:148 135:40 136:190 137:65 138:172
139:55 140:192 141:106 142:142 143:133 144:167
145:33 146:280 147:105 148:294 149:168 150:97
151:65 152:106 153:86 154:5 155:143 156:77
157:91 158:165 159:174 160:77 161:62 162:203
163:83 164:207 165:175 166:155 167:232 168:420
169:140 170:312 171:8 172:2 192:5702 193:3177
194:2342 195:1550 196:651 198:3948 199:3288 200:3903
201:123 202:5568 203:6100 204:3823 205:1980 206:2465
207:2754 208:2044 209:3246 210:1682 211:834 212:1143
213:1287 214:274 215:33 216:3496 217:1143 218:192
219:106 220:376 221:207 222:91
End of report
